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Fan water curtain evaporative negative pressure ventilation cooling system equipment【Common faults and troubleshooting methods】

2022-06-21

Symptoms, fault analysis and troubleshooting methods


Water curtain drifting water leaks

Check if the water supply is too large, if there are damaged wet curtains, broken edges or "flying edges"

1. The pressure of the water pump can be adjusted;

2. The pressure reducing valve can be adjusted;

3. The water flow can be adjusted by adjusting the ball valve control switch above the water curtain; If the edge is broken or "flying edge", the "flying edge" water curtain paper can be gently pinched off with your fingers; Water leaks at the seams, and after stopping the water supply, add silicone.


Wet curtain paper pads are unevenly wet and dry

Check whether the water supply is insufficient and whether there is dirt blocking the water inlet of the pump

1. The pressure of the water pump can be adjusted;

2. The pressure reducing valve can be adjusted;

3. The water flow can be adjusted by adjusting the ball valve control switch above the water curtain;

4. Rinse the water pool, pump inlet, filter, spray water pipe, etc. in time to remove the dirt in the water supply circulation system.


The pump is not pumped or the water pressure is too small

1. Pump reversal;

2. The pump is not working because the motor may be damaged or the phase is missing.


The water pump leaks

The pump seal ring is worn, and the pump seal ring needs to be replaced The pump motor cannot be rotated

1. The power line is not working.

2. The motor burns out.

3. The frequency converter burns out.

4. The bearing is stuck or damaged.

5. Overload.

6. Single-phase motors may have damaged capacitors or poor contact with centrifugal switches.


The pump motor overheats. Burned out

1. If the load is not compatible, replace the motor that is suitable.

2. If the supply voltage is too high or too low, the power supply voltage should be adjusted.

3. Stator windings are short-circuited or grounded between turns or phases.

4. The motor ventilation is not good, the air duct is abnormal, and check whether the wind blade is damaged.

5. The ambient temperature is too high.

6. The capacitance of the single-phase motor is too large.


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